1. Magnetically and quickly secured.
2. HD glasses from Germany.
3. Waterproof, stain-resistant, mildewproof, and scratch-resistant AR coatings.
4. Large-diameter and ultra-thin filter; no vignetting.
5. No cross pattern in the picture.
6. Magnetically secures SmallRig 52mm magnetic filter adapter ring, safe and stable.
7. Hard stops at ND2 & ND32 for precise control of shooting.